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Wen L, Shi G, Sun Y, Cui Y, Zhang S, Chen X, Cheng J, Wang J, Xin B. Rapid and efficient extraction of Zn from wasted Zn-rich paint residue by indirect bioleaching and successive production of high-purity ZnCO 3/ZnO by precipitation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 342:118294. [PMID: 37295149 DOI: 10.1016/j.jenvman.2023.118294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 05/17/2023] [Accepted: 05/28/2023] [Indexed: 06/12/2023]
Abstract
Waste zinc-rich paint residue (WZPR) represents a typical hazardous waste containing both toxic organic substances and heavy metals. The extraction of Zn from WZPR by traditional direct bioleaching has been attracting attention owing to its eco-friendliness, energy conservation and low cost. However, a long bioleaching time and a low Zn release cast a shadow on the reputed bioleaching. To shorten the bioleaching time, the spent medium (SM) process was first used to free Zn from WZPR in this study. The results showed that the SM process had a much higher performance in Zn extraction. Zn removals of 100% and 44.2% (8.6 g/L and 15.2 g/L in the released concentration) were gained within 24 h under pulp densities of 2.0% and 8.0%, respectively, being over 1000 times of the release performance of Zn by previously reported direct bioleaching. On the one hand, the biogenic H+ in SM attacks ZnO to liberate Zn (Ⅱ) via quick acid dissolution. On the other hand, the biogenic Fe3+ not only highly oxidizes Zn0 in WZPR to generate and release Zn2+ but also intensely hydrolyzes to produce H+ to attack ZnO for further dissolution of Zn2+. Both biogenic H+ and Fe3+ contribute to over 90% of Zn extraction as the leading indirect bioleaching mechanism. Due to the high concentration of released Zn2+ and fewer impurity, the bioleachate was used to successfully produce high-purity ZnCO3/ZnO using a simple precipitation, thus achieving the high-value recycling of Zn in WZPR.
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Affiliation(s)
- Lingkai Wen
- School of Material Science and Engineering, Beijing Institute of Technology, Beijing, 100081, PR China
| | - Gongchu Shi
- School of Material Science and Engineering, Beijing Institute of Technology, Beijing, 100081, PR China
| | - Yingqin Sun
- School of Material Science and Engineering, Beijing Institute of Technology, Beijing, 100081, PR China
| | - Yanchao Cui
- College of Environmental and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing, 100080, PR China
| | - Shihao Zhang
- School of Material Science and Engineering, Beijing Institute of Technology, Beijing, 100081, PR China
| | - Xiaohui Chen
- School of Material Science and Engineering, Beijing Institute of Technology, Beijing, 100081, PR China
| | - Jian Cheng
- School of Material Science and Engineering, Beijing Institute of Technology, Beijing, 100081, PR China
| | - Jia Wang
- Tangshan Research Institute, Beijing Institute of Technology, Tangshan, 063000, PR China; College of Environmental and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing, 100080, PR China
| | - Baoping Xin
- School of Material Science and Engineering, Beijing Institute of Technology, Beijing, 100081, PR China; Tangshan Research Institute, Beijing Institute of Technology, Tangshan, 063000, PR China.
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Wang J, Zhang S, Qian C, Cui Y, Shi G, Cheng J, Li X, Xin B. Heat treatment-enhanced bioleaching of new electroplating sludge containing high concentration of CuS and its mechanisms. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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3
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Khodadadmahmoudi G, Abdollahi H, Mohammadzadeh A, Saneie R, Mirmohammadi M, Rezaei A, Jozanikohan G, Naderi H. Green extraction of nickel and valuable metals from pyrrhotite samples with different crystallographic structures through acidophilic bioleaching. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 317:115394. [PMID: 35751240 DOI: 10.1016/j.jenvman.2022.115394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 05/21/2022] [Accepted: 05/23/2022] [Indexed: 06/15/2023]
Abstract
Nowadays, due to the strategic status of nickel in the global market, utilizing its disregarded resources like low-grade nickel containing pyrrhotite is of significant importance. A comprehensive set of experiments and analyses were performed to determine the bioleaching capability and mechanism for nickel extraction from hexagonal and monoclinic pyrrhotite. Over 95% Ni extraction was achieved from the hexagonal pyrrhotite sample. Ni extraction from the monoclinic sample reached its maximum value of 67% and 90% at 3% pulp density, with mixed mesophilic and moderately thermophilic cultures, respectively. Characterization analyses indicated that jarosite and elemental sulfur formation in mixed mesophilic bioleaching reduced the samples' bio-oxidation rate and metal dissolution. The kinetics study revealed that the controlling step in thermophilic bioleaching is the chemical reaction; however, the mixed control model was best fitted on mesophilic data. Electrochemistry studies confirmed bioleaching results and indicated that monoclinic pyrrhotite's oxidation rate under the operating conditions is faster than hexagonal pyrrhotite, and the temperature positively correlates with the oxidation rate. Toxicity assessment analysis showed that the final residues of both bioleached samples could be considered environmentally safe.
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Affiliation(s)
| | - Hadi Abdollahi
- School of Mining Engineering, College of Engineering, University of Tehran, Tehran, Iran.
| | | | - Roozbeh Saneie
- School of Mining Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Mirsaleh Mirmohammadi
- School of Mining Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Ali Rezaei
- School of Mining Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Golnaz Jozanikohan
- School of Mining Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Hojat Naderi
- Department of Mining and Metallurgical Engineering, Yazd University, Iran
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4
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Thermal pretreatment of spent button cell batteries (BCBs) for efficient bioleaching. KOREAN J CHEM ENG 2022. [DOI: 10.1007/s11814-022-1160-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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5
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Ecological Transition in the Field of Brake Pad Manufacturing: An Overview of the Potential Green Constituents. SUSTAINABILITY 2022. [DOI: 10.3390/su14052508] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Nowadays, the drive for green products has undergone a rapid increase following the global ecoawareness and the severe regulations aimed at preventing the environment from further damage. The use of ecosafe constituents in materials for harsh applications, such as brake pad systems, can be a possible solution for reducing health hazards arising from particle release during braking. Based on this, the present study provides a bibliographic review of green alternative constituents for friction material formulation, focusing the attention on their influence on the tribological properties of the final composites. The traditional materials still used in commercial brake pads are shortly described, with the aim to provide an overview of the current situation. In the final part of the review, following the trend of circular economy, works dealing with the use of waste as an ingredient of friction materials are also reported. The whole literature screening points out that much work is still required to obtain completely green friction materials. Indeed, few works dealing with the phenolic resin replacement, proposing inorganic ecosafe materials such as geopolymers, are present. On the contrary, the use of natural fibers is widely investigated: palm kernel, flax, agave and aloe can be identified as promising constituents based on the literature results and the generated patents.
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Gavrilescu M. Microbial recovery of critical metals from secondary sources. BIORESOURCE TECHNOLOGY 2022; 344:126208. [PMID: 34715340 DOI: 10.1016/j.biortech.2021.126208] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/17/2021] [Accepted: 10/20/2021] [Indexed: 06/13/2023]
Abstract
The continuous development of technologies involving critical metals, both in Europe and over the world, and geopolitical challenges in areas rich in critical metal sources, imposed increased research efforts to recover them from secondary sources, by eco-efficient processes. Yet, microbes-metal interactions are not sufficiently exploited to recover metals from secondary sources, although they are already used in ore extraction. This review examines and compare strategies and processes involving microorganisms for critical metals recovery, since conventional physico-chemical methods are energy-intensive and often polluting. Two groups of microbial assisted recovery processes are discussed: metal mobilization from metal bearing waste, and selective metal separation from leaching solutions by immobilization on microbial biomass. Because most of the identified microbial technologies are developed on laboratory scale, the increase of biorecovery efficiency is compulsory for enhancing scaling-up potential. Future developments focused on novel microorganisms and high-performance strategies for critical metal recovery by microbial processes are considered.
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Affiliation(s)
- Maria Gavrilescu
- "Gheorghe Asachi" Technical University of Iasi, "Cristofor Simionescu" Faculty of Chemical Engineering and Environmental Protection, Department of Environmental Engineering and Management, 73 Prof. Mangeron Blvd., 700050 Iasi, Romania.
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Cai G, Ebrahimi M, Zheng G, Kaksonen AH, Morris C, O'Hara IM, Zhang Z. Effect of ferrous iron loading on dewaterability, heavy metal removal and bacterial community of digested sludge by Acidithiobacillus ferrooxidans. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 295:113114. [PMID: 34171779 DOI: 10.1016/j.jenvman.2021.113114] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 05/13/2021] [Accepted: 06/16/2021] [Indexed: 06/13/2023]
Abstract
Acidithiobacillus ferrooxidans ILS-2 was adapted in digested sludge and used to treat sludge for dewaterability improvement. Results showed that increasing ferrous iron loading increased sludge dewaterability, but the inoculation of the bioleaching strain had little effect on sludge dewaterability compared to controls without the strain. The total extracellular polymeric substances (EPS) contents of sludges with and without bioleaching treatment were similar except for bioleaching treatment at 10% ferrous iron loading (on sludge total solids) where total EPS was higher with bioleaching treatment. However, bioleaching treatment for 48 h had a notable effect on removal of heavy metals, such as Mn, Ni and Zn, especially at the high loadings of ferrous iron. In the presence of A. ferrooxidans, the removal of Ni, Mn and Zn reached 93%, 88% and 80%, respectively, at a ferrous iron loading of 21%. The sequencing of 16S rRNA genes indicated that increasing ferrous iron loadings to 15% and 21% increased the relative abundance of Acidithiobacillus, Acidocella (with A. ferrooxidans) and Carboxylicivirga (without A. ferrooxidans) but decreased the abundance of Pseudomonas and Acinetobacter after 48 h treatment. This study enhanced the understanding of the correlations between bioleaching treatment of digested sludge, sludge dewaterability, heavy metal removal and bacterial communities.
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Affiliation(s)
- Guiqin Cai
- Centre for Agriculture and the Bioeconomy, Faculty of Science, Queensland University of Technology, Brisbane, QLD 4000, Australia; School of Mechanical, Medical and Process Engineering, Faculty of Engineering, Queensland University of Technology, Brisbane, QLD 4000, Australia
| | - Majid Ebrahimi
- Centre for Agriculture and the Bioeconomy, Faculty of Science, Queensland University of Technology, Brisbane, QLD 4000, Australia; School of Mechanical, Medical and Process Engineering, Faculty of Engineering, Queensland University of Technology, Brisbane, QLD 4000, Australia
| | - Guanyu Zheng
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
| | - Anna H Kaksonen
- Commonwealth Scientific and Industrial Research Organisation, Land and Water, Wembley, WA 6913, Australia
| | - Christina Morris
- Commonwealth Scientific and Industrial Research Organisation, Land and Water, Wembley, WA 6913, Australia
| | - Ian M O'Hara
- Centre for Agriculture and the Bioeconomy, Faculty of Science, Queensland University of Technology, Brisbane, QLD 4000, Australia; School of Mechanical, Medical and Process Engineering, Faculty of Engineering, Queensland University of Technology, Brisbane, QLD 4000, Australia; ARC Centre of Excellence in Synthetic Biology, Queensland University of Technology, QLD 4000, Australia
| | - Zhanying Zhang
- Centre for Agriculture and the Bioeconomy, Faculty of Science, Queensland University of Technology, Brisbane, QLD 4000, Australia; School of Mechanical, Medical and Process Engineering, Faculty of Engineering, Queensland University of Technology, Brisbane, QLD 4000, Australia; ARC Centre of Excellence in Synthetic Biology, Queensland University of Technology, QLD 4000, Australia.
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Golzar-Ahmadi M, Mousavi SM. Extraction of valuable metals from discarded AMOLED displays in smartphones using Bacillus foraminis as an alkali-tolerant strain. WASTE MANAGEMENT (NEW YORK, N.Y.) 2021; 131:226-236. [PMID: 34171827 DOI: 10.1016/j.wasman.2021.06.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 06/09/2021] [Accepted: 06/13/2021] [Indexed: 06/13/2023]
Abstract
With the alarming rate of e-waste generation, resource recovery from secondary metal sources is essential for sustainable resource utilization and to prevent the release of potentially toxic elements into the environment. In the current study, the first-time extraction of Ag, Mo, and Cu from active-matrix organic light-emitting diode (AMOLED) screens of discarded smartphones have been achieved using organic acids produced by Bacillus foraminis cultured on a modified Horikoshi medium. The influences of initial pH, inoculation size, and pulp density on the bioleaching process were evaluated over six-day experiment. Maximum extraction of Ag, Mo, and Cu (100, 56.8, and 41.4%) at optimal values of three investigated factors was obtained over a 12-day bioleaching experiment. A diverse assemblage of organic acid was produced in the optimized bioleaching condition, including tartaric (12.1 mM), formic (49.8 mM), acetic (21.5 mM), lactic (78.5 mM), citric (2.7 mM), and propionic (69.6 mM) acid. The contact angle analysis highlighted more hydrophobicity of powder after the bioleaching. FTIR and CHNO data also confirmed the role of bioleaching in the powder wettability alteration. The sequential extraction method revealed high mobility of In, Fe, Co, Cu, Cr, and Mo and low mobility of Ag. The results exhibited high tolerance of alkali-tolerant bacteria to potentially toxic elements and its superior performance in the bioleaching of discarded mobile screens at high pulp density.
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Affiliation(s)
- Mehdi Golzar-Ahmadi
- Biotechnology Group, Chemical Engineering Department, Tarbiat Modares University, Tehran, Iran
| | - Seyyed Mohammad Mousavi
- Biotechnology Group, Chemical Engineering Department, Tarbiat Modares University, Tehran, Iran; Modares Environmental Research Institute, Tarbiat Modares University, Tehran, Iran.
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Su G, Deng X, Hu L, Praburaman L, Zhong H, He Z. Comparative analysis of early-stage adsorption and biofilm formation of thermoacidophilic archaeon Acidianus manzaensis YN-25 on chalcopyrite and pyrite surfaces. Biochem Eng J 2020. [DOI: 10.1016/j.bej.2020.107744] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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10
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Wang Q, Zhou L, Little SH, Liu J, Feng L, Tong S. The geochemical behavior of Cu and its isotopes in the Yangtze River. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 728:138428. [PMID: 32339845 DOI: 10.1016/j.scitotenv.2020.138428] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 04/01/2020] [Accepted: 04/02/2020] [Indexed: 06/11/2023]
Abstract
Copper (Cu) isotopes can be a useful tool to constrain the interaction of water and the environment, but they have not been widely applied to riverine research in the preceding decades. Isotopically heavy Cu in rivers (global average: about +0.7‰) compared to rocks (at about 0‰) has been attributed to: a) the mobilization of heavy Cu during oxidative weathering, and b) partitioning between an isotopically heavy, organically complexed dissolved pool, and an isotopically light pool adsorbed to particulates. Here, we report Cu concentrations and isotope ratios of the main stream of the Yangtze River and its several tributaries. We find that the Yangtze River exhibits anomalously heavy Cu isotope compositions compared to other rivers: δ65CuNIST 976 of dissolved Cu for the main stream, from Chongqing to Nanjing, ranges from +0.59 to +1.65‰, while the tributaries vary from +0.48 to +1.20‰. A negative correlation is observed between Cu concentrations and Cu isotope compositions. We attribute the anomalous Cu isotope geochemistry of the Yangtze River to two key features of the basin: first, the influence of the Three Gorges Dam (TGD), and second, the presence of extensive Cu sulphide deposits close to the lower reaches of the river. In the upper reaches, downstream towards the TGD, δ65Cu values increase as Cu concentrations decrease, reflecting the preferential adsorption of light Cu by sedimenting particulate phases. δ65Cu values continue to increase to a maximum of +1.65‰ in the middle reaches, at Guangxingzhou. The lower reaches, from Jiujiang to Tongling, are characterized by less positive values of δ65Cu (at about +0.60‰), due to the oxidative weathering of Cu sulphide deposits. The overall Cu-δ65Cu trend in the river reflects mixing of these waters from the lower reaches, influenced by Cu sulphides, with waters from upstream, which have lower Cu concentrations and elevated δ65Cu values.
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Affiliation(s)
- Qian Wang
- State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China
| | - Lian Zhou
- State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China.
| | - Susan H Little
- Department of Earth Sciences, University College London, Gower Street, WC1E 6BT, London
| | - Jinhua Liu
- State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China
| | - Lanping Feng
- State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China
| | - Shuoyun Tong
- State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China
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Moro G, Bottari F, Van Loon J, Du Bois E, De Wael K, Moretto LM. Disposable electrodes from waste materials and renewable sources for (bio)electroanalytical applications. Biosens Bioelectron 2019; 146:111758. [PMID: 31605984 DOI: 10.1016/j.bios.2019.111758] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 09/23/2019] [Accepted: 10/01/2019] [Indexed: 11/19/2022]
Abstract
The numerous advantages of disposable and screen-printed electrodes (SPEs) particularly in terms of portability, sensibility, sensitivity and low-cost led to the massive application of these electroanalytical devices. To limit the electronic waste and recover precious materials, new recycling processes were developed together with alternative SPEs fabrication procedures based on renewable, biocompatible sources or waste materials, such as paper, agricultural byproducts or spent batteries. The increased interest in the use of eco-friendly materials for electronics has given rise to a new generation of highly performing green modifiers. From paper based electrodes to disposable electrodes obtained from CD/DVD, in the last decades considerable efforts were devoted to reuse and recycle in the field of electrochemistry. Here an overview of recycled and recyclable disposable electrodes, sustainable electrode modifiers and alternative fabrication processes is proposed aiming to provide meaningful examples to redesign the world of disposable electrodes.
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Affiliation(s)
- Giulia Moro
- LSE Research Group, Department of Molecular Science and Nanosystems, Ca' Foscari University of Venice, Via Torino 155, 30172, Mestre, Italy; AXES Research Group, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Fabio Bottari
- AXES Research Group, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Joren Van Loon
- AXES Research Group, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium; Product Development Research Group, Faculty of Design Sciences, University of Antwerp, Ambtmanstraat 1, 2000, Antwerp, Belgium
| | - Els Du Bois
- Product Development Research Group, Faculty of Design Sciences, University of Antwerp, Ambtmanstraat 1, 2000, Antwerp, Belgium
| | - Karolien De Wael
- AXES Research Group, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium.
| | - Ligia Maria Moretto
- LSE Research Group, Department of Molecular Science and Nanosystems, Ca' Foscari University of Venice, Via Torino 155, 30172, Mestre, Italy.
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